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Thread: Do the NAPA Transmission filters fit a 4HP24?

  1. #1
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    Do the NAPA Transmission filters fit a 4HP24?

    I bought a transmission filter from NAPA and when I pulled the original they are quite different.The original one has the o-ring opening on the top and a slot along one side that leads to the pan. The NAPA one (and the others they show online) has a round tube that protrudes into the pan instead of the slot. A quick measurement shows it MAY be able to mount there. Their info says it will fit a 1991 850i. I ran the RealOEM # in google and I see others with the pick up tube sticking out the bottom. Has anyone run into this before or am I being paranoid?


    phpInN6JePM.jpg
    Last edited by maint; 02-14-2019 at 09:43 PM.

  2. #2
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    The pic is a bit small to see details. Here explained: The 4HP24 BMW trans filter has a slot on top with an o-ring and a long neck on the bottom, because the 4HP24 has a deeper oil pan compared to most 4HP22. The 4HP22 for E32 M30, E34, E30 has in most cases at the bottom a short neck, NEVER sidewards. It always depends on the ATF pan, deep or flat. All 4HP24 have the deep version, and recently I made a service on a 4HP22 of a Landrover, that even has a suction snorkel down into a very deep ATF pan, even much longer than the BMW ones.
    I have both here for making the trans service, for the 4HP24 I always use the Meistersatz from FCP, here shown for a 1991 E31 850 https://www.fcpeuro.com/BMW-parts/85...991&m=20&e=190
    the 4HP22 has basically the same filter with long neck, in case the trans pan is the deep version, or with short neck when the trans has the flat pan. This is a flat version for example for an E30 325, you see the tube is much shorter than the one for the 4HP24
    https://www.ebay.com/itm/ZF4HP22-NEW...-/260809813854

    That is the one for the E38 750 A5S560Z with the suction section sidewards https://www.fcpeuro.com/products/bmw...24341422419kit

    you need the one with the round long tube for the deep pan 4HP24 like the Meistersatz from FCP.
    If the filter has a short round tube (like on some 4HP22) or on the side, the trans will make noise, as the suction point is not always fully covered with ATF and will suck with the ATF also air, the typical whining sound.

    There is a lot of wrong info in the net, for example this one looks like the short neck version and mentions the old E23, E30 series and at the same time they mention 4HP22 E31 850 and E32 750, wrong! https://www.ebay.co.uk/itm/ZF4HP22-N...-/260809813854
    Last edited by shogun; 02-15-2019 at 03:37 AM.
    Shogun tricks and tips for the E32 series are HERE!

  3. #3
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    Sorry Shogun, didn't realize how small the pic really was. Here is a bigger one that shows the slot on the old filter and the tube on the new. I've had the car for about five years but only 12,000km and never noticed an issue with the transmission. The filter is being changed as I noticed the gasket was leaking steadily while the car sat on the hoist. The pan has a 1/2" drop in the front and the old rubber gasket had hardened. All the filters I have seen with a sideways slot online were shaped different than the one I have. I have had too many cars where the manufacturer made a short lived change that almost no one knew about to take much for granted.
    Attached Images Attached Images
    Last edited by maint; 02-16-2019 at 01:34 AM.

  4. #4
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    I mounted the new filter and wrapped a piece of tape around the pick up tube to find out how much clearance there is to the pan. It is maybe 3/16", with the gasket on. I'm guessing that should be enough for the amount of fluid pulled through the filter. It appears someone in the past mounted a Meistersatz ZF4HP22-24 filter or equivalent (at least it looks identical).
    Last edited by maint; 02-15-2019 at 02:44 PM.

  5. #5
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    Never seen such as filter with a side inlet (the dirty, oily one in your pic) on a 4HP22 and not on a 4HP24.
    The new one is the correct one for 4HP24, it is the one with the long suction tube.
    Can you clean the dirty filter and see what is written on it? Usually there is the maker, type number and even the production date. Just for info for us.
    Shogun tricks and tips for the E32 series are HERE!

  6. #6
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    Only marks at all are on the top side. There is a stamped circle with CW inside and 412 stamped nearby. It is a J spec car but has been here for maybe 15 years and I don't know if anyone has changed the oil. Maybe Tom (Wuffer ) knows as I believe it started with him
    Last edited by maint; 02-16-2019 at 01:33 AM.

  7. #7
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    I live in Japan and do valve body overhauls, we have done many on 4HP24, never seen such a filter in a 4HP24. Here some pics where we also show the ATF filter on a 4HP24 on a E34 550 Racing Dynamics with M70 engine and a 4HP24 ZF trans http://e32b12.blogspot.com/search/label/4HP24 that shows very clear the long pipe on the filter.
    CW is a ATF filter maker company from Taiwan, Cob-Web Industrial Co. Ltd., Taoyuan City, Taiwan http://en.cob-web.tw/categories/filter
    they have the short neck version shown here, type SF167 http://en.cob-web.tw/products/sf167
    long neck mentions also 850Ci 1993-1996, type SF 167A http://en.cob-web.tw/products/sf167a
    and this one for a 850Ci from 1989-1994 , typeSF167B http://en.cob-web.tw/products/sf167b

    412 most probably means produced 04 = April, 12 = 2012. Usually on the filter is the production dated stamped on. Just yesterday I showed such a production date to someone on an E46 5HP19, that proved, that since of production of the car the ATF filter was never changed. People are usually shocked when I show them the production date of the old filter after we removed it.
    Shogun tricks and tips for the E32 series are HERE!

  8. #8
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    Last question for you (today)- On my GMC truck When I change the trans filter and oil I can disconnect the oil return line from the cooler and direct it into a marked bucket. It is pretty easy to gauge how much oil is going into the bucket and pour the same amount into the trans fill tube. By doing this the majority of oil in the system is changed at once. Is it possible and advisable to try the same on this car?

  9. #9
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    Never done ATF change on an GMC truck, as there are only a few in Japan. But basically you can do as you plan it, at the end however, always check the trans fluid level, no matter how much came out and what you filled.
    The 4HP22/24 have a dipstick, so easy to check.
    We do a trans flush on an 4HP24 this way, then you get all out from the trans, trans cooler, TC, DIY-Trans-flush-setup https://www.bimmerforums.com/forum/s...ns-flush-setup
    fluid level check https://www.europeantransmissions.co...ansService.pdf
    Shogun tricks and tips for the E32 series are HERE!

  10. #10
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    Shogun, I recently sent in my valve body to be repaired by a shop in new jersey and it has transmission clutch dust/material that looked almost identical to the one that is in the link you provided; http://e32b12.blogspot.com/search/label/4HP24. The shop told me, with that much material (grey/black soot) P1180177.jpgI should get my transmission rebuilt. Do you recommend putting the valve body back in or get the whole transmission rebuilt before I install the valve body? I don't want to damage my rebuilt valve body or clog up any cleaned solenoids. I had lost my reverse and that is why I had my valve body rebuilt.


    Quote Originally Posted by shogun View Post
    I live in Japan and do valve body overhauls, we have done many on 4HP24, never seen such a filter in a 4HP24. Here some pics where we also show the ATF filter on a 4HP24 on a E34 550 Racing Dynamics with M70 engine and a 4HP24 ZF trans http://e32b12.blogspot.com/search/label/4HP24 that shows very clear the long pipe on the filter.
    CW is a ATF filter maker company from Taiwan, Cob-Web Industrial Co. Ltd., Taoyuan City, Taiwan http://en.cob-web.tw/categories/filter
    they have the short neck version shown here, type SF167 http://en.cob-web.tw/products/sf167
    long neck mentions also 850Ci 1993-1996, type SF 167A http://en.cob-web.tw/products/sf167a
    and this one for a 850Ci from 1989-1994 , typeSF167B http://en.cob-web.tw/products/sf167b

    412 most probably means produced 04 = April, 12 = 2012. Usually on the filter is the production dated stamped on. Just yesterday I showed such a production date to someone on an E46 5HP19, that proved, that since of production of the car the ATF filter was never changed. People are usually shocked when I show them the production date of the old filter after we removed it.
    Hurt

    Current project working on the E31 rebuild.
    1992 BMW 850i, 1995 E31 840ci, 2008 E90 M3, 2008 750Li

  11. #11
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    That does not look so good. In the case you mention we got it running again. Made a long time flushing, cleaned the valve body, filled ATF, let him drive some month, again flushing, ATF change, fiter change and once more valve body cleaning.
    We also increased the clutch pack pressure by playing a bit with the pressure valve in the valve body. Several times ATF pan off, turning a bit on the pressure valve, fitting again, test drive and repeat again till the owner was happy. So the car owner knew it was a gamble to refresh the ATF, clean, flush, VB overhaul, and he liked that idea.

    But that is not the way a normal shop does it for a customer, they have to tell him that there is a lot of wear in the clutch packs and they will not guarantee such a repair.

    Let's say we made a life extension of the trans, meanwhile several years o.k., but I do not know how many miles he drove meanwhile. A shop which has to guarantee the repair will definitely suggest to reman it with such wear. Also cost factors are different, if a shop does the work at normal rates or we privately to help someone . diagnosis http://gershon.ucoz.com/ZF/powertrain-zf.pdf
    Also read this, no R http://www.bimmerboard.com/forums/posts/884045
    Or, if you have time and need a challenge, DIY http://www.cowdery.org.uk/zf.php on the other hand reman transmissions in the US are pretty cheap, here in Japan the price is almost double

    In our case it was a gamble, but there was still enough material on the clutch packs, worked well after that. Owner did not want to change the trans and asked us to try, if failed, he still could buy a cpl. reman trans with rebuilt valve body installed. I would try it if it would be my car, but decision is up to you. If you do not DIY, then better buy a reman trans.
    Shogun tricks and tips for the E32 series are HERE!

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